| original |
Wenlockian |
|
Canada(Ontario) |
Hinde,G.J. On Annelid jaws from the Cambro-Silurian, Silurian and Devonian Formations in Canada and from the Lower Carboniferous in Scotland |
1879 |
| details |
Wolfcampian |
|
Kansas |
Tasch,P. et al. Scolecodonts from the Fort Riley Limestone, (Wolfcampian), of Kansas. |
1960 |
| details |
Wenlockian |
|
Canada(Ontario) |
Kozur,H. A study on the classification of fossil Phyllodocida and Eunicida (polychaeta). |
1970 |
| details |
Late Pennsylvanian |
|
Kansas |
Brainard,R.H. Scolecodonts from the Leaven Limestone and Snyder Ville Shale of eastern Kansas. |
1978 |
| details |
Ordovician |
|
India |
Viswanathiah,M.N. et al. Scolecodonts and chitinozoa from the Indian Peninsula. |
1980 |
| details |
Ordovician |
Carboniferous |
Worldwide |
Taugourdeau,P. Importance of evolution of the dispersed scolecodonts, (Annelids) in the stocking of seas during Paleozoic times. |
1983 |
| details |
Late Ordovician |
Early Silurian |
India(Himachal Pradesh) |
Khanna,A.K. Scolecodonts from Late Ordovician-Early Silurian sequence of Spiti Valley, Tethys Himalaya. (In: Proceedings, Symposium and Technical Sessions. R.S. Tiwari, editors) |
1984 |
| details |
Ordovician |
Silurian |
China(Tibet) |
Xing,Y. A discovery of micropalaeophyta, chitinozoa and scolecodonts from Ordovician and Silurian in Keping, Xinjiang. |
1986 |
| details |
Late Devonian |
|
Canada |
Szaniawski,H. Scolecodonts. (Principles and Applications. Applications. J.Jansonius and D.C.McGregor, editors.) |
1996 |